The inefficiencies come from the top.
Management comes up with unrealistic ideas, people run in circles trying to keep up, and then management decides the reason that their revenue goals or whatever aren’t being met is because of over staffing, not their harebrained ideas.
It’s not like 25-75% of employees are just playing video games all day (though there’s people who do that). They’re dealing with the corporate machine - the real “culture” that’s so carefully “cultivated” by management. Getting in meetings that should be emails, answering “just a quick question” that destroys their thought process, and dealing with AI being crammed down their throat.